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Security report for felixhoeltken.de

Felix Höltken GmbH · Manufacturing · Germany

High risk. 7 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

48/100

Risk levelHigh

0–100, higher is better. How it is calculated

Felix Höltken GmbH is a medium-sized German company specializing in Baustoffrecycling and Baustoffgroßhandel, operating since 1990 and part of the EPH-Konzern. The company provides high-quality recycled construction materials primarily for the construction and infrastructure sectors, positioning itself as a sustainable alternative to natural stone resources. The website reflects a professional and consistent brand image, targeting business clients in the construction industry. Technically, the site is built on TYPO3 CMS, uses Matomo for privacy-conscious analytics, and implements a cookie consent mechanism via Klaro, indicating a mature digital infrastructure. Security posture is adequate with HTTPS enabled and no visible vulnerabilities, though security headers could be improved. Overall, the website is well-structured, accessible, and compliant with GDPR requirements, with clear contact information and no blocking mechanisms detected.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 100 · High
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

7 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

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Keep watching felixhoeltken.de

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
72
Security headers
25
Email security
70
DNS health
60
Network security
20
GDPR outside view
43
Average
48

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The company holds a stable market position as a supplier of recycled building materials in Germany, leveraging its long-standing presence since 1990 and affiliation with the EPH-Konzern. Its business model focuses on B2B wholesale and recycling services, targeting construction firms and contractors. The website's integration with a professional job portal (personio.de) suggests active recruitment and growth. The absence of certifications or security policies on the site indicates potential areas for business process enhancement. The company benefits from a consistent branding strategy and clear communication channels, supporting trust and credibility in its sector.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and a cookie consent mechanism aligned with GDPR. However, the absence of explicit security headers (e.g., CSP, HSTS) and lack of published security or incident response policies represent gaps. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of Matomo analytics reflects a privacy-conscious approach. The company should consider publishing security policies and incident response contacts to enhance transparency and readiness. Overall, the security posture is adequate but could be strengthened to meet higher compliance standards.

Recommendations

  1. Implement comprehensive HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options.
  2. Publish a dedicated security policy and incident response contact information on the website.
  3. Conduct regular security audits of third-party scripts and CMS extensions to mitigate vulnerabilities.
  4. Enhance accessibility features to improve compliance and user experience for all visitors.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
Felix Höltken GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Felix Höltken GmbH
Description
Die Felix Höltken GmbH, ein Unternehmen im EPH-Konzern, ist im Baustoffrecycling und Baustoffgroßhandel tätig und Ihr Lieferant von geprüften Recycling-Baustoffen.
Key services
Baustoffrecycling, Baustoffgroßhandel, Lieferung geprüfter Recycling-Baustoffe
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, Matomo Analytics, Modernizr, Klaro Consent Manager
Frameworks
TYPO3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled (implied by canonical URL https://)
  • Cookie consent banner with opt-in/out
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo, Klaro Consent Manager
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and relevant to the construction recycling industry.
  3. Clear contact information and company details are provided.
  4. Use of TYPO3 CMS and Matomo analytics indicates a modern and privacy-conscious technical setup.
  5. Cookie consent mechanism is implemented with Klaro.
  6. No security headers detected in HTML but HTTPS is used.
  7. No visible forms collecting personal data on homepage.
  8. No social media links detected in provided HTML.
  9. No explicit privacy or security policy pages beyond privacy and legal notices.
  10. No vulnerability disclosure or incident response information found.
Technical notes

Notes

The website is built on TYPO3 CMS, a robust and widely used content management system, indicating a solid technical foundation. The use of Modernizr and lazy loading images suggests attention to performance and compatibility. Hosting is managed by agenturserver, a professional hosting provider, as inferred from nameservers. Analytics are handled by Matomo, supporting privacy compliance. The site is mobile optimized with a responsive design and clear navigation. However, the absence of explicit security headers and limited accessibility features highlight areas for technical improvement. Performance is moderate, with potential for optimization in loading speed and SEO enhancements.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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